package cn.wen.service;import cn.wen.entity.UserEntity;import org.apache.catalina.User;import org.springframework.stereotype.Service;import java.util.List;@Servicepublic interface UserCacheService {    /**     * 删除后台用户缓存     */    void delUser(String userId);    /**     * 获取缓存后台用户信息     */    UserEntity getUser(String username);    /**     * 设置缓存后台用户信息     */    void setUser(UserEntity user, boolean isUserId);}